Yifan Zhen, Bin Xue. Underwater Neighborhood Sound Field Reconstruction Method Based on Laser Deflection Effect[J]. Laser & Optoelectronics Progress, 2024, 61(5): 0501003
- Laser & Optoelectronics Progress
- Vol. 61, Issue 5, 0501003 (2024)
Fig. 1. Construction idea of sound field reconstruction model
Fig. 2. Kirchhoff integral region setting
Fig. 3. Kirchhoff integral theorem for plane diffraction
Fig. 4. Verification of sound field boundary extension method. (a) Simulation of 0.2 m
Fig. 5. Simulated acoustic hologram comparison. (a) Simulated three-dimensional sound field; (b) acoustic holography by 0.2 m
Fig. 6. PSNR of acoustic holography obtained by three methods
Fig. 7. Effect of light power on output signal of PSD
Fig. 8. Schematic of experimental apparatus
Fig. 9. Experimental flow chart
Fig. 10. Result of sound field reconstruction. (a) Sound pressure reconstruction results; (b) sound pressure gradient field reconstruction results
Fig. 11. Comparative analysis of sound pressure in reconstructed sound field. (a) Sound field analysis section and point location diagram; (b) spatial cross-section sound pressure of sound field at each time; (c) variation of sound pressure at six specific points in the sound field over time
Fig. 12. Near field acoustic hologram scene
Fig. 13. Comparison of measurement sound field and holographic sound field. (a) Measuring sound field; (b) direct acoustic holography; (c) acoustic holography after LPBP
Fig. 14. Comparison of measured sound pressure value and holographic sound pressure value
Fig. 15. Acoustic hologram result of measuring sound field. (a) Acoustic holography after LPBP; (b) direct acoustic holography
|
Table 1. Experimental parameter
|
Table 2. Comparison of three reconstruction methods
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20